<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-type" content="text/html" charset="utf-8">
    <meta name="viewport"
          content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes"/>
    <meta name="apple-mobile-web-app-status-bar-style" content="black"/>
    <meta name="format-detection" content="telephone=no">
    <title></title>
    <script>
        (function (doc, win) {
            var docEl = doc.documentElement,
                    resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
                    recalc = function () {
                        var clientWidth = docEl.clientWidth;
                        if (!clientWidth) return;
                        docEl.style.fontSize = 60 * (clientWidth / 750) + 'px';
                    };
            if (!doc.addEventListener) return;
            win.addEventListener(resizeEvt, recalc, false);
            doc.addEventListener('DOMContentLoaded', recalc, false);
        })(document, window);
    </script>
    <script>
        //这个页面是空白页，可看成为p4，作为p4-1,4-2,4-3之间跳转的中转站
        //随机数测试，location.href为跳转
            var num=Math.floor(Math.random()*3);
            if(num==1){
                location.href="4-1.html";
            }
            else if(num==2){
                location.href="4-2.html";
             }
            else{
                location.href="4-3.html";
             }
    </script>
</head>
<body>
</body>
</html>